Rape jokes are not jokes. Woman-hating jokes are not jokes. These guys are telling you what they think. When you laugh along to get their approval, you give them yours. You tell them that the social license to operate is in force; that you’ll go along with the pact to turn your eyes away from the evidence; to make excuses for them; to assume it’s a mistake, of the first time, or a confusing situation. You’re telling them that they’re at low risk.